yugabyte-db
rqlite
yugabyte-db | rqlite | |
---|---|---|
91 | 113 | |
8,580 | 15,098 | |
1.1% | 1.6% | |
10.0 | 9.9 | |
5 days ago | 4 days ago | |
C | Go | |
GNU General Public License v3.0 or later | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
yugabyte-db
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Crash on clock skew: performance vs availability
In a distributed database, NTP synchronization is essential and should be carefully monitored and fixed in case of any failures. To allow some time drift, a maximum clock skew is set. This skew should be kept low enough for performance to avoid too many read retries and high enough for availability to avoid any node evictions caused by network errors. It is a good idea to check the NTP synchronization when starting a YugabyteDB node. This will be implemented by 22255.
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Advisory/Custom/Application Lock with YugabyteDB
Different ways exist to implement locking mechanisms on arbitrary values. For example, PostgreSQL provides pg_advisory_lock, MySQL has get_lock, Oracle Database offers dbms_lock, and SQL Server use sp_getapplock. For YugabyteDB, the PostgreSQL version is not currently supported (#3642).
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A lightweight YugabyteDB docker image for CI/CD
When it comes to production, it is recommended to use the official docker image for YugabyteDB. You can either obtain it from Docker Hub or build it yourself using the Dockerfile. If you are using CI/CD pipelines, it may be helpful to reduce the size of the image. One way to do this is to remove the debug symbols from the compiled binaries. These symbols are useful for troubleshooting but not essential for automated testing. If you encounter any issues, you can easily reproduce them using the regular image.
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Multi-region YugabyteDB deployment on AWS EKS with Istio
YugabyteDB is a transactional database that brings together four must-have needs of cloud native apps – namely SQL as a flexible query language, low-latency performance, continuous availability, and globally-distributed scalability. Other databases do not serve all 4 of these needs simultaneously.
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Best Practice: use the same datatypes for comparisons, like joins and foreign keys
It is possible to apply Batched Nested Loop but with additional code that checks the range of the outer bigint and compare it only if it matches the range of integer. This has been added in YugabyteDB 2.21 with #20715 YSQL: Allow BNL on joins over different integer types to help migrations from PostgreSQL with such datatype inconsistencies.
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Jonathan Katz: Thoughts on PostgreSQL in 2024
It can be done like https://github.com/yugabyte/yugabyte-db/ has.
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Is co-partition or interleave necessary in Distributed SQL?
Therefore, interleaving or co-partitioning is probably not necessary, and would reduce agility and scalability more than improving the performance. Unless you have a good reason for it that you can share on Issue #79. But, first, test and tune the queries to see if you need something else.
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PostGIS on YugabyteDB Alma8 (workarounds)
This is a workaround, not supported. I've opened the following issue to get it solve in the YugabyteDB deployment: https://github.com/yugabyte/yugabyte-db/issues/19389
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Bitmap Scan in YugabyteDB
Note that there may still be a need for bitmaps, especially with disjunctions (OR) as the following is about conjunction (AND), and it can still be implemented, differently than PostgreSQL. This is tracked by #4634.
- Yugabyte – distributed PostgreSQL, 100% open source
rqlite
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Why SQLite Is Taking over with Brian Holt and Marco Bambini
SQLite is not competing with RDMBSes. SQLite is competing with fopen().
There are of course solutions which wrap this fopen() replacement in a network/cluster-aware tools, e.g. https://github.com/rqlite/rqlite - these are competing with postgres.
- The lightweight, easy-to-use, distributed relational database built on SQLite
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CursusDB – A new scalable distributed document oriented database
Seems like you could do the same with rqlite [1], since SQLite supports JSON.
[1]: https://rqlite.io
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Rqlite 8.0
rqlite[1] creator here, happy to answer any questions about rqlite, this latest release, and how it works.
[1] https://rqlite.io
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Adding new database engine support
I found simple distributed RQlite https://github.com/rqlite/rqlite based on raft and sqlite. How hard is to add it?
- I'm All-In on Server-Side SQLite
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So, you want to deploy on the edge?
rqlite[1] creator here, happy to answer any questions. rqlite also supports read-only nodes, which can also help with reads at the "edge". It probably wouldn't scale to 100s of nodes, it is an option.
"rqlite supports adding read-only nodes. You can use this feature to add read scalability to the cluster if you need a high volume of reads, or want to distribute copies of the data nearer to clients – but don’t want those nodes counted towards the quorum. These types of nodes are also known as non-voting nodes."
[1] https://rqlite.io/
[2] https://rqlite.io/docs/clustering/read-only-nodes/
- LiteFS Cloud: Distributed SQLite with Managed Backups
- Show HN: Rqlite, distributed DB built on SQLite, now runs on MIPS, RISC, PowerPC
- rqlite v7.19.0: the lightweight distributed relational database built on Go, Raft, and SQLite -- now runs on MIPS, PowerPC, and RISC
What are some alternatives?
citus - Distributed PostgreSQL as an extension
dqlite - Embeddable, replicated and fault-tolerant SQL engine.
cockroach - CockroachDB - the open source, cloud-native distributed SQL database.
litestream - Streaming replication for SQLite.
neon - Neon: Serverless Postgres. We separated storage and compute to offer autoscaling, code-like database branching, and scale to zero.
psycopg2 - PostgreSQL database adapter for the Python programming language
bolt
realtime - Broadcast, Presence, and Postgres Changes via WebSockets
etcd - Distributed reliable key-value store for the most critical data of a distributed system [Moved to: https://github.com/etcd-io/etcd]
Apache AGE - Graph database optimized for fast analysis and real-time data processing. It is provided as an extension to PostgreSQL. [Moved to: https://github.com/apache/age]
TinyGo - Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM.